Keep track of remote servers

Fixes #32

fedireads/migrations/0024_federatedserver_application_version.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.0.3 on 2020-03-29 22:44
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('fedireads', '0023_auto_20200328_2203'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='federatedserver',
+            name='application_version',
+            field=models.CharField(max_length=255, null=True),
+        ),
+    ]

fedireads/models/user.py

@@ -108,6 +108,7 @@ class UserRelationship(FedireadsModel):
         base_path = self.user_subject.absolute_id
         return '%s#%s/%d' % (base_path, self.status, self.id)
 
+
 class UserFollows(UserRelationship):
     @property
     def status(self):
@@ -121,16 +122,19 @@ class UserFollows(UserRelationship):
             relationship_id=follow_request.relationship_id,
         )
 
+
 class UserFollowRequest(UserRelationship):
     @property
     def status(self):
         return 'follow_request'
 
+
 class UserBlocks(UserRelationship):
     @property
     def status(self):
         return 'blocks'
 
+
 class FederatedServer(FedireadsModel):
     ''' store which server's we federate with '''
     server_name = models.CharField(max_length=255, unique=True)
@@ -138,6 +142,7 @@ class FederatedServer(FedireadsModel):
     status = models.CharField(max_length=255, default='federated')
     # is it mastodon, fedireads, etc
     application_type = models.CharField(max_length=255, null=True)
+    application_version = models.CharField(max_length=255, null=True)
 
 
 @receiver(models.signals.pre_save, sender=User)

fedireads/remote_user.py

@@ -13,8 +13,6 @@ def get_or_create_remote_user(actor):
     except models.User.DoesNotExist:
         pass
 
-    # TODO: handle remote server and connector
-
     # load the user's info from the actor url
     response = requests.get(
         actor,
@@ -30,6 +28,9 @@ def get_or_create_remote_user(actor):
     shared_inbox = data.get('endpoints').get('sharedInbox') if \
         data.get('endpoints') else None
 
+
+    server = get_or_create_remote_server(actor_parts.netloc)
+
     # throws a key error if it can't find any of these fields
     user = models.User.objects.create_user(
         username,
@@ -46,6 +47,7 @@ def get_or_create_remote_user(actor):
         fedireads_user=data.get('fedireadsUser', False),
         manually_approves_followers=data.get(
             'manuallyApprovesFollowers', False),
+        federated_server=server,
     )
     if user.fedireads_user:
         get_remote_reviews(user)
@@ -65,3 +67,36 @@ def get_remote_reviews(user):
         if status.get('fedireadsType') == 'Review':
             create_review_from_activity(user, status)
 
+
+def get_or_create_remote_server(domain):
+    ''' get info on a remote server '''
+    try:
+        return models.FederatedServer.objects.get(
+            server_name=domain
+        )
+    except models.FederatedServer.DoesNotExist:
+        pass
+
+    response = requests.get(
+        'https://%s/.well-known/nodeinfo' % domain,
+        headers={'Accept': 'application/activity+json'}
+    )
+    data = response.json()
+    try:
+        nodeinfo_url = data.get('links')[0].get('href')
+    except (TypeError, KeyError):
+        return None
+
+    response = requests.get(
+        nodeinfo_url,
+        headers={'Accept': 'application/activity+json'}
+    )
+    data = response.json()
+
+    server = models.FederatedServer.objects.create(
+        server_name=domain,
+        application_type=data['software']['name'],
+        application_version=data['software']['version'],
+    )
+    return server
+

fedireads/wellknown.py

@@ -105,6 +105,6 @@ def peers(request):
     if request.method != 'GET':
         return HttpResponseNotFound()
 
-    # TODO
-    return JsonResponse([])
+    names = models.FederatedServer.objects.values_list('server_name', flat=True)
+    return JsonResponse(list(names), safe=False)